2-4S LiPo battery low voltage alarm indicator meter for radio control toys<br />Size: about 42 x 25 x 11 mm<br />Tested battery cell voltage (> 3.6V) 2S LiPo battery: 2 green LED lights on<br />Tested battery cell voltage (> 3.6V) 3S LiPo battery: 3 green LED lights on<br />Tested battery cell voltage (> 3.6V) 4S LiPo battery: 4 green LED lights on<br />Cell voltage < 3.3V， corresponding red light will on and alarm will be sounded<br />1 x LiPo Battery Voltage Indicator<br /><img src="http://img6.eachbuyer.com/x15/p13/bg366_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x15/p13/bg366_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x15/p13/bg366_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x15/p13/bg366_4.jpg" />